Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/utilities/utility/forward/forward.pass.cpp

@@ -0,0 +1,80 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+#include <cassert>
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+typedef char one;
+struct two {one _[2];};
+struct four {one _[4];};
+struct eight {one _[8];};
+
+one test(A&);
+two test(const A&);
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+four test(A&&);
+eight test(const A&&);
+
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+int main()
+{
+    A a;
+    const A ca = A();
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    static_assert(sizeof(test(std::forward<A&>(a))) == 1, "");
+    static_assert(sizeof(test(std::forward<A>(a))) == 4, "");
+    static_assert(sizeof(test(std::forward<A>(source()))) == 4, "");
+
+    static_assert(sizeof(test(std::forward<const A&>(a))) == 2, "");
+//    static_assert(sizeof(test(std::forward<const A&>(source()))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A>(a))) == 8, "");
+    static_assert(sizeof(test(std::forward<const A>(source()))) == 8, "");
+
+    static_assert(sizeof(test(std::forward<const A&>(ca))) == 2, "");
+//    static_assert(sizeof(test(std::forward<const A&>(csource()))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A>(ca))) == 8, "");
+    static_assert(sizeof(test(std::forward<const A>(csource()))) == 8, "");
+
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    static_assert(sizeof(test(std::forward<A&>(a))) == 1, "");
+    static_assert(sizeof(test(std::forward<A>(a))) == 1, "");
+//    static_assert(sizeof(test(std::forward<A>(source()))) == 2, "");
+
+    static_assert(sizeof(test(std::forward<const A&>(a))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A&>(source()))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A>(a))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A>(source()))) == 2, "");
+
+    static_assert(sizeof(test(std::forward<const A&>(ca))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A&>(csource()))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A>(ca))) == 2, "");
+    static_assert(sizeof(test(std::forward<const A>(csource()))) == 2, "");
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+#if _LIBCPP_STD_VER > 11
+    constexpr int i1 = std::move(23);
+    static_assert(i1 == 23, "" );
+    constexpr int i2 = std::forward<int>(42);
+    static_assert(i2 == 42, "" );
+#endif
+}

test/std/utilities/utility/forward/forward1.fail.cpp

@@ -0,0 +1,24 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+int main()
+{
+    std::forward<A&>(source());  // error
+}

test/std/utilities/utility/forward/forward2.fail.cpp

@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+int main()
+{
+    const A ca = A();
+    std::forward<A&>(ca);  // error
+}

test/std/utilities/utility/forward/forward3.fail.cpp

@@ -0,0 +1,24 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+int main()
+{
+    std::forward<A&>(csource());  // error
+}

test/std/utilities/utility/forward/forward4.fail.cpp

@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+int main()
+{
+    const A ca = A();
+    std::forward<A>(ca);  // error
+}

test/std/utilities/utility/forward/forward5.fail.cpp

@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+int main()
+{
+    const A ca = A();
+    std::forward<A>(csource());  // error
+}

test/std/utilities/utility/forward/forward6.fail.cpp

@@ -0,0 +1,22 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+struct A
+{
+};
+
+int main()
+{
+    A a;
+    std::forward(a);  // error
+}

test/std/utilities/utility/forward/move_copy.pass.cpp

@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+int copy_ctor = 0;
+int move_ctor = 0;
+
+class A
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#else
+#endif
+
+public:
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    A(const A&) {++copy_ctor;}
+    A& operator=(const A&);
+
+    A(A&&) {++move_ctor;}
+    A& operator=(A&&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    A(const A&) {++copy_ctor;}
+    A& operator=(A&);
+
+    operator std::__rv<A> () {return std::__rv<A>(*this);}
+    A(std::__rv<A>) {++move_ctor;}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    A() {}
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+void test(A) {}
+
+int main()
+{
+    A a;
+    const A ca = A();
+
+    assert(copy_ctor == 0);
+    assert(move_ctor == 0);
+
+    A a2 = a;
+    assert(copy_ctor == 1);
+    assert(move_ctor == 0);
+
+    A a3 = std::move(a);
+    assert(copy_ctor == 1);
+    assert(move_ctor == 1);
+
+    A a4 = ca;
+    assert(copy_ctor == 2);
+    assert(move_ctor == 1);
+
+    A a5 = std::move(ca);
+    assert(copy_ctor == 3);
+    assert(move_ctor == 1);
+}

test/std/utilities/utility/forward/move_if_noexcept.pass.cpp

@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <utility>
+
+// template <class T>
+//     typename conditional
+//     <
+//         !is_nothrow_move_constructible<T>::value && is_copy_constructible<T>::value,
+//         const T&,
+//         T&&
+//     >::type
+//     move_if_noexcept(T& x);
+
+#include <utility>
+
+class A
+{
+    A(const A&);
+    A& operator=(const A&);
+public:
+
+    A() {}
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    A(A&&) {}
+#endif
+};
+
+struct legacy
+{
+    legacy() {}
+    legacy(const legacy&);
+};
+
+int main()
+{
+    int i = 0;
+    const int ci = 0;
+
+    legacy l;
+    A a;
+    const A ca;
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    static_assert((std::is_same<decltype(std::move_if_noexcept(i)), int&&>::value), "");
+    static_assert((std::is_same<decltype(std::move_if_noexcept(ci)), const int&&>::value), "");
+    static_assert((std::is_same<decltype(std::move_if_noexcept(a)), A&&>::value), "");
+    static_assert((std::is_same<decltype(std::move_if_noexcept(ca)), const A&&>::value), "");
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    static_assert((std::is_same<decltype(std::move_if_noexcept(i)), const int>::value), "");
+    static_assert((std::is_same<decltype(std::move_if_noexcept(ci)), const int>::value), "");
+    static_assert((std::is_same<decltype(std::move_if_noexcept(a)), const A>::value), "");
+    static_assert((std::is_same<decltype(std::move_if_noexcept(ca)), const A>::value), "");
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    static_assert((std::is_same<decltype(std::move_if_noexcept(l)), const legacy&>::value), "");
+
+#if _LIBCPP_STD_VER > 11
+    constexpr int i1 = 23;
+    constexpr int i2 = std::move_if_noexcept(i1);
+    static_assert(i2 == 23, "" );
+#endif
+
+}

test/std/utilities/utility/forward/move_only.pass.cpp

@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+class move_only
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(const move_only&);
+    move_only& operator=(const move_only&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&);
+    move_only& operator=(move_only&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&&) {}
+    move_only& operator=(move_only&&) {return *this;}
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<move_only> () {return std::__rv<move_only>(*this);}
+    move_only(std::__rv<move_only>) {}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    move_only() {}
+};
+
+move_only source() {return move_only();}
+const move_only csource() {return move_only();}
+
+void test(move_only) {}
+
+int main()
+{
+    move_only mo;
+
+    test(std::move(mo));
+    test(source());
+}

test/std/utilities/utility/forward/move_only1.fail.cpp

@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+#include <typeinfo>
+#include <stdio.h>
+
+class move_only
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(const move_only&);
+    move_only& operator=(const move_only&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&);
+    move_only& operator=(move_only&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&&) {}
+    move_only& operator=(move_only&&) {}
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<move_only> () {return std::__rv<move_only>(*this);}
+    move_only(std::__rv<move_only>) {}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    move_only() {}
+};
+
+move_only source() {return move_only();}
+const move_only csource() {return move_only();}
+
+void test(move_only) {}
+
+int main()
+{
+    move_only a;
+    const move_only ca = move_only();
+
+    test(a);
+}

test/std/utilities/utility/forward/move_only2.fail.cpp

@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+#include <typeinfo>
+#include <stdio.h>
+
+class move_only
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(const move_only&);
+    move_only& operator=(const move_only&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&);
+    move_only& operator=(move_only&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&&) {}
+    move_only& operator=(move_only&&) {}
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<move_only> () {return std::__rv<move_only>(*this);}
+    move_only(std::__rv<move_only>) {}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    move_only() {}
+};
+
+move_only source() {return move_only();}
+const move_only csource() {return move_only();}
+
+void test(move_only) {}
+
+int main()
+{
+    move_only a;
+    const move_only ca = move_only();
+
+    test(ca);
+}

test/std/utilities/utility/forward/move_only3.fail.cpp

@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+class move_only
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(const move_only&);
+    move_only& operator=(const move_only&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&);
+    move_only& operator=(move_only&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&&) {}
+    move_only& operator=(move_only&&) {}
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<move_only> () {return std::__rv<move_only>(*this);}
+    move_only(std::__rv<move_only>) {}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    move_only() {}
+};
+
+move_only source() {return move_only();}
+const move_only csource() {return move_only();}
+
+void test(move_only) {}
+
+int main()
+{
+    move_only a;
+    const move_only ca = move_only();
+
+    test(std::move(ca));
+}

test/std/utilities/utility/forward/move_only4.fail.cpp

@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+#include <typeinfo>
+#include <stdio.h>
+
+class move_only
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(const move_only&);
+    move_only& operator=(const move_only&);
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&);
+    move_only& operator=(move_only&);
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+public:
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    move_only(move_only&&) {}
+    move_only& operator=(move_only&&) {}
+#else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    operator std::__rv<move_only> () {return std::__rv<move_only>(*this);}
+    move_only(std::__rv<move_only>) {}
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+    move_only() {}
+};
+
+move_only source() {return move_only();}
+const move_only csource() {return move_only();}
+
+void test(move_only) {}
+
+int main()
+{
+    move_only a;
+    const move_only ca = move_only();
+
+    test(csource());
+}